/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */

package com.lb.material_preferences_library.internal.widget;

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.widget.ImageView;

import com.lb.material_preferences_library.R;

//import android.support.v7.preference.R;

/**
 * Extension of ImageView that correctly applies maxWidth and maxHeight.
 *
 * @hide
 */
public class PreferenceImageView extends ImageView
  {

  private int mMaxWidth=Integer.MAX_VALUE;
  private int mMaxHeight=Integer.MAX_VALUE;

  public PreferenceImageView(Context context)
    {
    this(context,null);
    }

  public PreferenceImageView(Context context,AttributeSet attrs)
    {
    this(context,attrs,0);
    }

  public PreferenceImageView(Context context,AttributeSet attrs,int defStyleAttr)
    {
    super(context,attrs,defStyleAttr);

    final TypedArray a=context.obtainStyledAttributes(
            attrs,R.styleable.PreferenceImageView,defStyleAttr,0);

    setMaxWidth(a.getDimensionPixelSize(
            R.styleable.PreferenceImageView_maxWidth,Integer.MAX_VALUE));

    setMaxHeight(a.getDimensionPixelSize(
            R.styleable.PreferenceImageView_maxHeight,Integer.MAX_VALUE));

    a.recycle();
    }

//    public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr,
//            int defStyleRes) {
//        super(context, attrs, defStyleAttr, defStyleRes);
//    }

  @Override
  public void setMaxWidth(int maxWidth)
    {
    mMaxWidth=maxWidth;
    super.setMaxWidth(maxWidth);
    }

  public int getMaxWidth()
    {
    return mMaxWidth;
    }

  @Override
  public void setMaxHeight(int maxHeight)
    {
    mMaxHeight=maxHeight;
    super.setMaxHeight(maxHeight);
    }

  public int getMaxHeight()
    {
    return mMaxHeight;
    }

  @Override
  protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec)
    {
    final int widthMode=MeasureSpec.getMode(widthMeasureSpec);
    if(widthMode==MeasureSpec.AT_MOST||widthMode==MeasureSpec.UNSPECIFIED)
      {
      final int widthSize=MeasureSpec.getSize(widthMeasureSpec);
      final int maxWidth=getMaxWidth();
      if(maxWidth!=Integer.MAX_VALUE
              &&(maxWidth<widthSize||widthMode==MeasureSpec.UNSPECIFIED))
        {
        widthMeasureSpec=MeasureSpec.makeMeasureSpec(maxWidth,MeasureSpec.AT_MOST);
        }
      }

    final int heightMode=MeasureSpec.getMode(heightMeasureSpec);
    if(heightMode==MeasureSpec.AT_MOST||heightMode==MeasureSpec.UNSPECIFIED)
      {
      final int heightSize=MeasureSpec.getSize(heightMeasureSpec);
      final int maxHeight=getMaxHeight();
      if(maxHeight!=Integer.MAX_VALUE
              &&(maxHeight<heightSize||heightMode==MeasureSpec.UNSPECIFIED))
        {
        heightMeasureSpec=MeasureSpec.makeMeasureSpec(maxHeight,MeasureSpec.AT_MOST);
        }
      }

    super.onMeasure(widthMeasureSpec,heightMeasureSpec);
    }
  }
